Safety pin



Dec. 14, 1926.

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SAFETY PIN Filed Jan. 26, 1926 Inventor. Vqjtch Pm;

Patented Dec. 14, 1926.

til ii l STATEd SAFETY PIN.

Application filed January 26, 1926, Serial No. 813,933,

In order to prevent the pinned material from iassing from the pointed shank of the pin to the shank carrying the closing caps, the bridge between these parts has been provided with a guard or enlargement, which usually consists of a metal piece, soldered to it. The manufacturing of such safety-pins requires a circumstantial work. It has been also proposed (see American Patents 875, 094- and 908,693) to press the metal piece on the bridge, but hitherto this metal piece surrounds too the parts of the shanks abut ting on the bridge. Thus it is possible, that the pinned material get pinched between the metal piece and the shanks of the safetypin, especially when a gaping results by using the pin for some time.

The present invention consists in pressing the guard or metal piece on the bridge only so that the abutting parts of the shanks of the pin remain free whereby the bridge is formed with a profile in length or in crosssection so that an enlargement firmly fixed to the bridge is obtained, as desired.

The drawing shows several constructions of a pin in accordance with my invention, by way of example. F ig. 1 shows an outline of the metal piece to be pressed on the bridge, Fig. 2 shows an outline of the open safety pin without the. enlargement, Fig. 3 shows the closed safety-pin titted with the enlargement piece, the latter being shown in section, Fig. l shows a modified form of the. safety pin with the enlargement piece in sec tion, Fig. 5 another .inodified form of the bridge-end-part of the safety pin with the enlargement piece in section, Flg. 6 1s a cross section on line m n: of Fig. 5 and Fig. 7 is 0 .r a modmed iorm of the bridge-end-part ot and-in Czechoslovakia January 31, 1925.

the safety pin with the enlargement piece in section.

The blunt shank l of the safety pin is con nee-ted by means of the bridge 3 with the pointed shank 2. v

in accordance with this invention the bridge 3 is provided with a bulging par l (see Figs. 2 and3). By pressing the piece of tin 5 about the bridge 3 the desired. enlargement is obtained its connection with the bridge being quite firm and permanent.

The same effect may be obtained it in accordance with Fig. l the brie es 3 is somewhat bent out, whereas the walls of the inner hollow space of the enlargement piece 5 remain straight.

Another modified i'orm'is shown in Figs. 5 and 6 which consists'in making the surface of the bridge 3 flat.

And another modified form of adjusting the bridge for the said purpose may be that shown in Fig. 7. In this modified construction the bridge 3 is provided with notchings S in which the material of the enlargement piece 5 is embedded when pressed-about the bridge.

hat I claim to be new is:

l. A safety pin connn'ising a bridge connecting the shanks of the pin, and a guard pressed around the bridge and spaced from the said shanks.

2. A safety pin comprising a bridge connecting the shanks of the pin, and ifguard rigidly secured to the bridge and spaced from the said shanks.

In testimony whereot 1 aiiii: my signature.

VOJTECH PUG. 

